Description
Warranty & Shipping
How-To & Tools
Product Reviews
Q&A
Vehicle Fit

Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (21.5 Inches)
  • Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 4 terminal configuration
  • Replaces dealer part numbers: 25333817, 25333812
  • Built and tested to strict quality control standards

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

If you have a bad O2 sensor causing your vehicle to fail an emission test then this is the part for you.

Install note:

You may be required to reset the vehicle computer after installation of this part.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Identifying your Oxygen Sensors (0:57)
    • Upstream oxygen sensors are located in between the engine and the catalytic converter
    • Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
    • Locate your vehicle's firing order diagram
    • The bank that contains cylinder one is bank one
    • The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

5.00/ 5.0
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02 sensor
Very happy with customer service . Was here in three or four days . I will definitely be ordering more parts from you guys .
October 16, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
This states it fits the 4.3 and 6.0. Does this fit the 5.3 and are they the same for bank 1 and bank 2?
Sam S December 11, 2015
Hello and thank you for your inquiry. This will fit different applications for different vehicle. It does not appear to be bank sensitive, but can fit downstream per the application. Thank you and have a great day!
Derek C December 16, 2015
My system has an upstream and downstream sensor so I am unable to answer your question.
A L August 11, 2017
Year Make Model Description
2003-2006Cadillac Escalade ESV Cadillac Escalade ESV V8 6.0L Downstream O2 Oxygen Sensor
2003-2006Cadillac Escalade ESV Cadillac Escalade ESV V8 6.0L Downstream O2 Oxygen Sensor
2003-2006Cadillac Escalade EXT Cadillac Escalade EXT V8 6.0L Downstream O2 Oxygen Sensor
2002-2007Chevy Silverado 1500 Chevy Silverado 1500 V8 6.0L Downstream O2 Oxygen Sensor
2007Chevy Silverado 1500 Classic Chevy Silverado 1500 Classic V8 6.0L Downstream O2 Oxygen Sensor
2001-2003Chevy Silverado 1500 HD Chevy Silverado 1500 HD Downstream O2 Oxygen Sensor
2005-2006Chevy Silverado 1500 HD Chevy Silverado 1500 HD Downstream O2 Oxygen Sensor
2007Chevy Silverado 1500 HD Classic Chevy Silverado 1500 HD Classic Downstream O2 Oxygen Sensor
2002-2004Chevy Silverado 2500 Chevy Silverado 2500 V8 6.0L Downstream O2 Oxygen Sensor
2002-2006Chevy Silverado 2500 HD Chevy Silverado 2500 HD V8 6.0L Downstream O2 Oxygen Sensor
2007Chevy Silverado 2500 HD Classic Chevy Silverado 2500 HD Classic V8 6.0L Downstream O2 Oxygen Sensor
2002-2006Chevy Silverado 3500 Chevy Silverado 3500 V8 6.0L Downstream O2 Oxygen Sensor
2007Chevy Silverado 3500 Classic Chevy Silverado 3500 Classic V8 6.0L Downstream O2 Oxygen Sensor
2002-2006Chevy Suburban 2500 Chevy Suburban 2500 V8 6.0L Downstream O2 Oxygen Sensor
2002-2006GMC Sierra 1500 GMC Sierra 1500 V8 6.0L Downstream O2 Oxygen Sensor
2007GMC Sierra 1500 Classic GMC Sierra 1500 Classic V8 6.0L Downstream O2 Oxygen Sensor
2002-2003GMC Sierra 1500 HD GMC Sierra 1500 HD Downstream O2 Oxygen Sensor
2005-2006GMC Sierra 1500 HD GMC Sierra 1500 HD Downstream O2 Oxygen Sensor
2007GMC Sierra 1500 HD Classic GMC Sierra 1500 HD Classic Downstream O2 Oxygen Sensor
2002-2004GMC Sierra 2500 GMC Sierra 2500 V8 6.0L Downstream O2 Oxygen Sensor
2002-2006GMC Sierra 2500 HD GMC Sierra 2500 HD V8 6.0L Downstream O2 Oxygen Sensor
2007GMC Sierra 2500 HD Classic GMC Sierra 2500 HD Classic V8 6.0L Downstream O2 Oxygen Sensor
2002-2006GMC Sierra 3500 GMC Sierra 3500 V8 6.0L Downstream O2 Oxygen Sensor
2007GMC Sierra 3500 Classic GMC Sierra 3500 Classic V8 6.0L Downstream O2 Oxygen Sensor
2007GMC Sierra 3500 HD GMC Sierra 3500 HD V8 6.0L Downstream O2 Oxygen Sensor
2004GMC Yukon GMC Yukon V8 6.0L Downstream O2 Oxygen Sensor
2002-2006GMC Yukon XL 2500 GMC Yukon XL 2500 V8 6.0L Downstream O2 Oxygen Sensor
2002-2003Hummer H2 Hummer H2 V8 6.0L Downstream O2 Oxygen Sensor
Part #: 1AEOS00074


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(03:08 min)